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公开(公告)号:US20230182100A1
公开(公告)日:2023-06-15
申请号:US17874631
申请日:2022-07-27
Inventor: Yongwoo Kim , Jihui Seo , Jaeyong Lee , Pyung Soon Kim , Jin Woo Choung , Minkyu Kim , Jaewon Kirk , Suk Woo Nam , Hyangsoo Jeong , Yongmin Kim
CPC classification number: B01J7/00 , C01B3/0005 , C07B35/04
Abstract: A dehydrogenation reaction apparatus is disclosed. An embodiment of the present disclosure provides a dehydrogenation reaction apparatus, including: a dehydrogenation reactor that includes a reaction vessel configured to store a chemical hydride, and at least one partition wall partitioning an inner space of the reaction vessel into a plurality of reaction chambers; and a buffer tank configured to temporarily store hydrogen generated in the dehydrogenation reactor and then supply the hydrogen to the fuel cell.
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公开(公告)号:US20220255101A1
公开(公告)日:2022-08-11
申请号:US17348578
申请日:2021-06-15
Inventor: Jihui Seo , Jin Woo Choung , Pyung Soon Kim , Suk Woo Nam , Hyangsoo Jeong , Yongmin Kim , Jaewon Kirk , Chang Won Yoon
IPC: H01M8/0612 , B01J19/24 , C01B3/06 , C01B3/00 , H01M8/065
Abstract: A hybrid dehydrogenation reaction system includes: an acid aqueous solution tank having an acid aqueous solution; an exothermic dehydrogenation reactor including a chemical hydride of a solid state and receiving the acid aqueous solution from the acid aqueous solution tank for an exothermic dehydrogenation reaction of the chemical hydride and the acid aqueous solution to generate hydrogen; an LOHC tank including a liquid organic hydrogen carrier (LOHC); and an endothermic dehydrogenation reactor receiving the liquid organic hydrogen carrier from the LOHC tank and generating hydrogen through an endothermic dehydrogenation reaction of the liquid organic hydrogen carrier by using heat generated from the exothermic dehydrogenation reactor.
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公开(公告)号:US20220250904A1
公开(公告)日:2022-08-11
申请号:US17348552
申请日:2021-06-15
Inventor: Pyung Soon Kim , Jin Woo Choung , Jihui Seo , Suk Woo Nam , Young Suk Jo , Hyangsoo Jeong , Jaewon Kirk , Chang Won Yoon , Yongmin Kim
IPC: C01B3/06 , H01M8/065 , H01M8/04082 , B01J19/00
Abstract: A dehydrogenation reaction device includes a dehydrogenation reactor having a solid chemical hydride and includes an add aqueous solution tank supplying an add aqueous solution to the dehydrogenation reactor. The dehydrogenation reactor includes a heating device, a cooling apparatus, a porous metal foam, or a combination thereof.
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公开(公告)号:US20250100878A1
公开(公告)日:2025-03-27
申请号:US18403314
申请日:2024-01-03
Inventor: Jihui Seo , Jaeyong Lee , Jihye Park , Ji-Hoon Jang , Pyung Soon Kim , Hanjin Kim , Hyangsoo Jeong , Hyuntae Sohn , Jaewon Kirk , Yoondo Kim , Yongmin Kim , Suk Woo Nam
IPC: C01B6/21
Abstract: A method of regenerating sodium borohydride includes: pretreating reactants including sodium tetraborate hydrate (Na2B4O7·xH2O, 0
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公开(公告)号:US12202726B2
公开(公告)日:2025-01-21
申请号:US18387793
申请日:2023-11-07
Inventor: Pyung Soon Kim , Jin Woo Choung , Jihui Seo , Suk Woo Nam , Young Suk Jo , Hyangsoo Jeong , Jaewon Kirk , Chang Won Yoon , Yongmin Kim
IPC: C01B3/06 , B01J19/00 , H01M8/04082 , H01M8/065
Abstract: An operating method is disclosed for a dehydrogenation reaction system. The method includes providing a system having: an acid aqueous solution tank including an acid aqueous solution; a dehydrogenation reactor including a chemical hydride of a solid state and receiving an acid aqueous solution from the acid aqueous solution tank to react the chemical hydride with the acid aqueous solution to generate hydrogen; and a fuel cell stack receiving hydrogen generated from the dehydrogenation reactor to be reacted with oxygen to generate water and simultaneously to generate electrical energy. The method also includes recycling the water generated from the fuel cell stack to one or all of the acid aqueous solution tank, the dehydrogenation reactor, and a separate water tank. The acid is formic acid and, in in the dehydrogenation reactor, the temperature is in a range of 10° C. to 400° C. and the pressure is in a range of 1 bar to 100 bar.
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公开(公告)号:US20240076182A1
公开(公告)日:2024-03-07
申请号:US18387793
申请日:2023-11-07
Inventor: Pyung Soon Kim , Jin Woo Choung , Jihui Seo , Suk Woo Nam , Young Suk Jo , Hyangsoo Jeong , Jaewon Kirk , Chang Won Yoon , Yongmin Kim
IPC: C01B3/06 , B01J19/00 , H01M8/04082 , H01M8/065
CPC classification number: C01B3/065 , B01J19/0013 , H01M8/04216 , H01M8/065 , B01J2219/00051 , B01J2219/00162 , C01B2203/085 , C01B2203/0872
Abstract: An operating method is disclosed for a dehydrogenation reaction system. The method includes providing a system having: an acid aqueous solution tank including an acid aqueous solution; a dehydrogenation reactor including a chemical hydride of a solid state and receiving an acid aqueous solution from the acid aqueous solution tank to react the chemical hydride with the acid aqueous solution to generate hydrogen; and a fuel cell stack receiving hydrogen generated from the dehydrogenation reactor to be reacted with oxygen to generate water and simultaneously to generate electrical energy. The method also includes recycling the water generated from the fuel cell stack to one or all of the acid aqueous solution tank, the dehydrogenation reactor, and a separate water tank. The acid is formic acid and, in in the dehydrogenation reactor, the temperature is in a range of 10° C. to 400° C. and the pressure is in a range of 1 bar to 100 bar.
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公开(公告)号:US20230294057A1
公开(公告)日:2023-09-21
申请号:US17972698
申请日:2022-10-25
Inventor: Pyung Soon Kim , Jin Woo Choung , Yongwoo Kim , Jihui Seo , Jaeyong Lee , Yongmin Kim , Suk Woo Nam , Hyuntae Sohn , Hyangsoo Jeong , Dong Gyun Kang , Arash Badakhsh , Donghyun Song
CPC classification number: B01J19/0013 , B01J16/005 , B01J19/243 , C01B3/0015 , B01D53/002 , B01J2219/00099 , B01J2219/00135 , B01J2219/00157
Abstract: A dehydrogenation reaction apparatus and a system including the same are disclosed. The dehydrogenation reaction apparatus includes: a main housing; and a dehydrogenation reactor which is provided inside of the main housing and has a catalyst provided inside. In particular, the dehydrogenation reactor generates hydrogen from a liquid organic hydrogen carrier (LOHC). The dehydrogenation reaction apparatus further includes: a heating device provided inside of the main housing and configured to apply heat to the dehydrogenation reactor through a phase change material, where the phase change material is provided between the main housing, and the dehydrogenation reactor and the heating device.
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公开(公告)号:US11594744B2
公开(公告)日:2023-02-28
申请号:US17348578
申请日:2021-06-15
Inventor: Jihui Seo , Jin Woo Choung , Pyung Soon Kim , Suk Woo Nam , Hyangsoo Jeong , Yongmin Kim , Jaewon Kirk , Chang Won Yoon
IPC: H01M8/0612 , B01J19/24 , H01M8/065 , C01B3/00 , C01B3/06
Abstract: A hybrid dehydrogenation reaction system includes: an acid aqueous solution tank having an acid aqueous solution; an exothermic dehydrogenation reactor including a chemical hydride of a solid state and receiving the acid aqueous solution from the acid aqueous solution tank for an exothermic dehydrogenation reaction of the chemical hydride and the acid aqueous solution to generate hydrogen; an LOHC tank including a liquid organic hydrogen carrier (LOHC); and an endothermic dehydrogenation reactor receiving the liquid organic hydrogen carrier from the LOHC tank and generating hydrogen through an endothermic dehydrogenation reaction of the liquid organic hydrogen carrier by using heat generated from the exothermic dehydrogenation reactor.
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公开(公告)号:US20220250903A1
公开(公告)日:2022-08-11
申请号:US17348539
申请日:2021-06-15
Inventor: Pyung Soon Kim , Jin Woo Choung , Jihui Seo , Hyuntae Sohn , Yu-Jin Lee , Hyangsoo Jeong , Yoondo Kim , Chang Won Yoon , Yongmin Kim
Abstract: A hydrogen generating method includes generating hydrogen by dehydrogenation-reacting a chemical hydride of a solid state with an acid aqueous solution. The dehydrogenation-reaction is performed by reacting 1 mol of hydrogen atoms of the chemical hydride with an acid and water at a molar ratio of 0.5 to 2.
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